Omron Q2V Series Technical Manual page 484

12.2 b: APPLICATION
■
b8-03: eSave Filter Time
No.
Name
(Hex.)
b8-03 eSave Filter Time
(01CE)
RUN
Expert
Decrease the setting value to increase responsiveness. If the setting value is too low, operation will not be stable.
■
b8-04: eSave Coef. Value
No.
Name
(Hex.)
b8-04 eSave Coef. Value
(01CF)
Expert
When you use a motor from a different manufacturer, increase the setting value in 5% increments to find the
minimum value for U1-08 [Output Power] at light loads.
When you decrease the setting value, it decreases the output voltage and decreases power consumption. If the
setting value is too low, the motor will stall.
Note:
When you do Rotational Auto-Tuning, the drive will automatically set the energy-saving coefficient.
■
b8-05: Power Det.Filter Time
No.
Name
(Hex.)
b8-05 Power Det.Filter Time
(01D0)
Expert
Decrease the setting value to increase responsiveness to load changes. If you set the value too low during
operation at light loads, motor speed is not stable.
■
b8-06: Srch Op.Volt Limit
No.
Name
(Hex.)
b8-06 Srch Op.Volt Limit
(01D1)
Expert
The Search Operation changes the output voltage in small increments to find a setpoint at which the drive can use
minimum power to operate.
Set this parameter to 0 to disable Search Operation. This will not disable Energy-saving control.
If the setting value is too low, the motor will stall when loads suddenly increase.
■
b8-16: PM eSave Coef.Ki
No.
Name
(Hex.)
b8-16 PM eSave Coef.Ki
(01F8)
Expert
When b8-16 = 1.00 (default), the drive will automatically calculate and control the energy-saving coefficient. If
the motor nameplate has a description for "Ki", set this parameter to the Ki value.
Do this procedure to prevent oscillation when you set b8-01 = 1 [eSave Ctrl Selection = Enabled].
1. Check U5-21 [Energy Save Ki Coeff] and make sure that it aligns with the Ki value on the motor nameplate.
2. If the numbers are different, set b8-16 to the Ki value on the motor nameplate.
484
V/f OLV OLV/PM OLV/PM AOLV/PM EZOLV
Sets the responsiveness for Energy-saving control.
V/f OLV OLV/PM AOLV/PM EZOLV OLV/PM
Sets the Energy-saving control coefficient to maintain maximum motor efficiency. The default
setting is for Yaskawa motors.
V/f OLV OLV/PM AOLV/PM EZOLV OLV/PM
Sets the time constant to measure output power.
V/f OLV OLV/PM AOLV/PM EZOLV OLV/PM
Sets the voltage limit for Search Operation as a percentage of the motor rated voltage.
V/f OLV OLV/PM AOLV/PM EZOLV OLV/PM
Sets torque linearity. This parameter uses the Ki value from the motor nameplate. Usually it is not
necessary to change this setting.
Description
Description
Description
Description
Description
SIEPCYEUOQ2V01A Q2V Technical Manual
Default
(Range)
Determined by A1-02, C6-
01 and o2-04
(0.00 - 10.00 s)
Default
(Range)
Determined by C6-01, E2-
11, and o2-04
(0.00 - 655.00)
Default
(Range)
20 ms
(0 - 2000 ms)
Default
(Range)
0%
(0 - 100%)
Default
(Range)
1.00
(0.00 - 3.00)